Polaris 120 XC SP - Manual (Page 41)

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PRESERVATION OF THE ENVIRONMENT
Teach your child to drive their snowmobile with consideration for the
protection and preservation of the environment.
Noise Level
One of the most publicized subjects with regard to snowmobiles is
noise. The Society of Automotive Engineers (SAE), which is the
standard-setting body for snowmobiles, has recommended that
snowmobiles conform to prescribed sound levels. This Polaris
snowmobile has been engineered to conform to these SAE standards.
In order to be meaningful, all regulations require the cooperation of the
snowmobile owner. Muffling systems, designed to reduce noise levels,
should not be altered or removed. Snowmobile drivers must be aware
that they have a public responsibility to operate their snowmobiles with
concern for others. As a snowmobile operator you may not realize the
sound of your snowmobile may annoy non-snowmobilers. We are
attempting to do our part through the manufacture of quieter machines,
and we also ask your help in the effort to further reduce the impact of
noise.
Air Pollution
As a part of Polaris’ plan for the snowmobile’s compatibility within the
environment, our engineers are investigating ways to reduce emission
levels of engines. We expect our efforts to lead to the reduction of
potential air pollution.
The four-stroke engine used in this snowmobile produces less exhaust
emissions and reduces noise, as well.
In addition to technological research, we also suggest that
governmental agencies, manufacturers, distributors, dealers, ecologists,
and other interested parties work together to develop data on
environmental topics. We will continue to participate in this type of
study so that someday we may find the answers to these difficult
issues.